Preston is making cookies. he has 4 over 5 cup of flour in a bag. he then used two 1 over 10 cups of flour for his recipe. which of the following best explains the amount of flour left in the bag? 6 over 10, because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 3 over 10 5 over 10, because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 3 over 10 6 over 10, because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 2 over 10 5 over 10, because 4 over 5 minus 2 times 1 over 10 equals 4 over 5 minus 2 over 10 30 points!